Bolt-operating mechanism



No. 319,488. Patented June 9, 1885.

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UNTTED STATES PATENT EEioE.

PHILIP HERZOG, OF MINNEAPOLIS, MINNESOTA.

BOLT-OPERATING MECHANlSiVL' SPECIFICATION forming part of Letters PatentNo,v 319,488, dated June 9, 1885.

Application filed January 31, 1885. (No model.)

To all whom it may concern:

Be it known that I, PHILIP HERZOG, a citizen of the United States, and aresident of Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inJail-Door Bolt'Opcrating Mechanism, of which the following is aspecification.

In the drawings, Figure 1 is a sectional View of a two-cell jail,showing my improved bolt mechanism arranged upon the doors of two cells.Fig. 2 is an enlarged detail of a portion of a jail-door and thesurrounding walls of a cell and vestibule or corridor with my im provedbolt mechanism attached thereto. Fig. 3 is a view of a portion of theside wall of a cell and vestibule or corridor, showing the positions ofthe bolt-operating levers, &c.

A represents the wall of the cell; B, the latticed walls of theprisoners corridor; 0, the outer walls of the prison; D, the j ailerscorridor, and E F? the latticed doors of the cells, all arranged in theordinary manner. This represents one form of asmall jail or prison; butin some of the larger prisons the corridors may be arranged somewhatdifferently but the arrangement shown is sufficient for the purpose ofillustration, the mechanism being applicable to one cell, or to two ormore cells when placed in a row. Each of the cell-doors is hinged at ato the cells in the ordinary manner, and upon the side of each cell, onthe opposite side of each door from the hinges a, are arranged bolts bIf, each door having two bolts near its top and bottom. These bolts runback and forth beneath straps or staples d (1 riveted to the sides ofthe cells, and their inner ends are adapted,when pushed inward, to lapover the door-casings or enter slots therein and lock the doors closed,and when pushed outward to release the doors.

F is a long bar or red supported in a horizontal position by straps orhangers e on the walls of the cell or cells above their doors, so thatthe bar is free to be moved back and forth in a horizontal position.

F F are upright rods or bars, each attached at its upper end to thehorizontal bar F, and running down and each connected to each of thebolts 6' b of each cell-door, as shown.

by the rods F F to the bolts 1) b move the latter back and forth with itand lock or unlock all the oelldoors connected to it at once. I haveshown in Fig. 1 two cell-doors connected to the rod F; but it is evidentthat any number from one to six or eight may be so connected. It is notgenerally advisable to arrange more than eight cells with one system oflocking levers and bolts; but I do not wish to be limited to anyparticular number. The rod F runs out through one of the walls B of theprisoners corridor into the jailers corridor D, and is attached to oneend of a small lever, H, the latter being in turn pivoted at or near itscenter in a hanger, g, on the wall of the contiguous cell or corridor.The other end of the lever H is pivoted in one end of a long lever, H,the latter being in turn pivoted in a hanger, 9 on the wall of the cellor eorridor, similar to the hanger g. The lever H is provided on itslower end with a handle, i,

and a slot adapted to fit over a staple or perforated bolt,t' ,by whichmeans the lever may be operated and locked into its place, as shown inFigs. 1 and 2. The pivot of the lever H is nearer the upper end than thelower end, so that an increase of power is obtained to operate the barF. Anti-friction rollers in (see Fig. 2) will be arranged in the hangersc of the rod F, so the latter may be moved more easily. By this simplearrangement I gain several very important advantages. By means of thesystem of rods F F F connected with the bolts on each cell,all the boltsof each. cell are opened and closed simultaneously, and without dangerof cramping, as by means of the braces F the bolts 1) b and rods F Fmove in an absolutely parallel line with the rod F. Another importantadvantage is gained by arranging the small auxiliary lever H between thelever H and rod F, as the lower ends of the lever H will be inwardagainst the cell or corridor walls when the cells are locked, and notprojecting outward and eb- ICC structing the corridor, as they would ifthey were attached directly to the bars F. The levers H after thecell-doors are opened,may be pushed in again to be out of the way, as noharm can result from the bolts 72 b being pushed in with the cell-doorsopen, so that the levers H may be arranged so as not to-obstruct thecorridor either when the doors are open or closed.

I claim another advantage by attaching the brace-bars F to the bars F ata point below the upper bolt,b, as I thereby not only gain a longerleverage and consequent increase of strength, but also support the lowerbolt, 12*, and bar F more thoroughly. By forming the small lever H withits upper arm shorter than its lower arm a still greater leverage may beobtained.

Having thus described my invention, what I claim as new is- GelLdoors EE, sliding bolts d d for each door, a common sliding bar, F,anti-friction rollers m m,upon which said bar slides, vertical rods F Fconnecting said bar F with said bolts d d and diagonal brace-rods F F,connecting said bar F and vertical rods F F, in combination withshortlever H, the upper end of which is pivoted to said sliding bar F,

and pivoted operating-lever H having its short arm pivoted to lever Hand its long arm provided with a handle, substantially as set forth.

' In testimony whereof I have hereunto set my hand in the presence oftwo subscribing witnesses. I

PH [LIP HERZV'OG.

Witnesses:

G. N. WooDwARD, S. WEBSTER.

